I never paid too much attention to prices until I got my license in 1976 at age sixteen. My parents taught me to be responsible in saying that if I wanted my driving freedom it would come with a cost....gasoline! If I was on "E" I could throw $5 in the tank and it was almost full. So i'm gonna say gas was about 53.9¢ around that time post the 1973-74 spike in gas prices from around 39¢ a gallon.
I do remember in 1999 14 short years ago I could fill up my little Honda CRX for less than $10 with the price being 99.9¢ a gallon.
Prices here have surged about 25¢ in the last 3 weeks. Avg $3.85